Which of the Following Clients Should Be Assessed as Demonstrating

Which of the following clients should be assessed as demonstrating aggression? The client who:

A) Walks into the group room and says to another client, "You stole my seat. That is where I always sit. You had better move!"
B) Paces back and forth in the hall singing loudly to the music the client is listening to with headphones.
C) Tells the nurse, "I don't need that medication and no one can make me take it."
D) Bursts into tears when the doctor says, "I don't think you are ready for discharge today."